Windows 10: How to fix "Flushdns can not be found"?

OS: Win 10 64-bitYesterday. My network & internet setting showed that my home wifi has no internet connection. However, my phone can surf the internet through this wifi normally.I checked a few tips on the net and attempt to ipconfig/flushdns through Win+R but only receive a message that it can't find ipconfig/flushdns I followed a different tips to check my DNS client Properties but all the options were grey out. Overall, dns client was running normally and it started with window startup I just can't interact with the options.So I followed the next tip to add a new Path variables %System

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Programs not working

In post 26 there were steps listed to fix the operating system corruption.
Are you able to follow them?
In post 29 was the suggested dism repair command.

 

2 x SSD Raid 0 - is this right?

T ski b4 your done with this post can you list a step by step fix of what you did, I would appreciate it if you would...Thanks

 

Networking issue between 2 desktop & laptop

Hey bud, thanks for the suggestion (which I'm sure would have worked!)

An ipconfig /flushdns
Ipconfig /registerdns

Worked and fixed it for me. Other problems with the second desktop prevail at random however. Close to just using homegroup >.>